Double-ring twisting frame specially for twisting artificial silk



Feb. 24, 1931. M. LENK 1.793.704

DOUBLE RING TWISTING FRAME SPECIALLY FOR TWISTING ARTIFICIAL SILK FiledSept. 19. 1929 2 Sheets-Sheet 1 fig! ln wenlor:

. Feb. 24, 1931. M LENK I 1,793,704

DOUBLE RING TWISTING FRAME SPECIALLY'FOR TWISTING ARTIFICIAL SILK FiledSept. 19, 1929 2 Sheets-Sheet 2 15 thereby" that the delivering spoolsareposi tively driven and that the guide rods for the Patented Feb. 24,1931 UNITED STATES PATENT OFFICE MATHIAS LEld'K, OF LENNEP, GERMANY,ASSIGNOR TO THE FIRM BARKER MASCHIN- Y ENFABRIK AKTIENGESELLSCHAFT, OFBABMEN-RITTERSHAUSEN, GERMANY DOUBLE-RING TWISTING FRAME SPECIALLY FORTWISTING ARTIFICIAL SILK Application filed September 19, 1928, SerialNo. 393,673, and in Germany February 25, 1928.

the distance between the twining ring and the thread guides remains thesame in anyposition. The twisting frame according to the invention'isfurther distinguished frame are arranged on the inner side of thespindles.

By these improvements it is obtained, in comparison with the knowndouble ring twisting-frames, on the one hand, that by the positivedriving of the delivering coils a large thread supply is ensured andconsequently no thread tension and no straining of the thread occursand, on the other hand, a steady running of the frame is ensured by thesuspended arrangement of the ring bank notwithstanding theextraordinarily high num- .ber of revolutions of the spindles, a rapidtraverse of the ring banks for the obtention of a sharp crossing of theartificial silk on the spools becoming thus possible. By the sharpcrossing an easier taking up of the thread is ensured. The uniformdistancebetween twining ring and thread guides ensures the uniformtwining of the artificial silk. By the arrangement of the guide rods onthe .outer side of-the rows of spindles is further obtained, that atbreaking of a thread the ends of the threads do not strike against thelubricated rods and therefore cannot soil the cops.

The improved ring-twisting frame is illustrated by way of example in theaccompanying drawing in which ig. 1 is an end elevation. Fig. 2 shows inside elevation a portion of the twisting frame.

On the end of the frame 1 of the twisting frame a box 2 is fixed whichcontains the drivdriving bar 5 is moved to and fro in longitudinaldirection, and'motion is also transmitted from the gear box 2 to thedelivering spools (land to the twining spindles 7. The twining spindles7 are driven through the intermediary of a shaft 8 and gear wheels 9,the delivering spools 6 being driven through the intermediary of gearwheels 10 and sprocket wheels 11 and 12. The delivering spools 6, whichare rotatably arranged abovethe' driving rod 5 on either side of themiddle line of the frame in bearings 13, are positively driven by meansof wormwheels 14 and 15 mounted in a common oilchest 16. The deliveringspools 6 might however be driven in any other suitable manner. Thedriving bar 5 'is adapted to be reciprocated by means of a changegearing through a set of counter gears from the gear box-2 Thereciprocating motion is produced by the eccentric 18 which drives thecarriage 17, the movement of the carriage being transmitted by chainupon roller 33' and thence through change wheels 34, 35 upon roller 33,and then by chain 19 upon the draw bar 5. The bar 5-is therefore pulledin one direction by chain 19 winding on the roller 33. The movement inopposite direction takes place after slackening of chain 19, i. e.,by'unwinding of this chain from the roller 13 through the weight of thewhole changing frame. The twining material 20 travels from thedelivering spools 6 through the thread guides 21 to the twining spindles7. The ring banks 22 are mounted on an intermediate frame 23 which,unsupported, slides suspended on guide rods 24, the twining rings 25being arranged on the ring banks 22 and the thread guides 21 on thecommon frame 23 in such a manner, that the distance between threadguides and twining rings re.-

fro over the pulley 26 according to the move-- ering spoolsthe ringbanks and the twining ment of the driving rod, whereby the ringspindles, and a common gear box'accommobanks 22 are raised-and lowered.The weight dating part of the driving gear and fixed on of the ringbanks is balanced by counter the end ofthe twisting frame.

- weight 28, which is also connected by a chain 30 guided over a pulley29 mounted on the same axle as the pulley 26 to the driving rod so thatthis counter weight is raised and lowered in opposite directions as thering banks. The cops are built up from below upward by means not shown,which transmit the motion to a worm-gear 31, whereby the driving rod,

when moving to and fro, is gradually moved towards the side by thewinding of the chain 19 on a pulley 32 and by the winding of the chain19 upon a pulley 33, so that thereby a periodical shortening of thechain 27 attached to the ring banks is effected, producing theprogressive upward movement of the 20 ring banks for the cop-formation,as the ring.

banks during their vertical reciprocating movement are slowly lifted,the counterweight 28 being lowered accordingly.

The guide rods 24 for the frame 23 carrying 25 the ring banks 22 arearranged on the inner side of the spindles 7 at such a distance from thesame, that the yarn 20 to be twisted cannot touch the lubricated rodswhen a thread should break. With this object in view the 80 driving gearfor the delivering spools 6, for

the twisting banks 22 and for the spindles 7 is accommodated in the gearbox 2 preferably arranged at the end of the twisting frame. Owing to thefact that the ring banks 22 85 on the two sides are arranged on theframe 23 sliding on guide rods, these ring banks can be readily andrapidly interchanged, whereby a sharper thread crossing of theartificial silk on the spool is obtained, the taking up of the threadbeing thereby facilitated.

I claim 1. A double ring twisting-frame specially for twini ngartificial silk, comprising in combination with the delivering spoolsand the two ring banks, a common driving rod for said ring banks, aframe on which said ring banks are arranged, means for supporting saidframe, guide rods on which said frame slides, and driving means forpositively driving said delivering spools.

2. A double ring-twisting frame specially for twining artificial silk asspecified in claim 1, comprising in combination with the common carryingframe for the ring banks, thread guides arranged on said common, frame.

3. A double ring twisting-frame specially for twining artificial silk asspecified in claim 1, comprising in combination with the spinthe. ringbanks, the guide rods for said frame arranged on the inner side of saidspindles.

, 4:. double ring twisting-frame specially for twining artificialsilk-as specified in claim 05 1, comprising in combination with thedelivdles and with the common carrying frame for.

. In testimony whereof I afiix my signature.

MATHIAS LENK.

